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S&S, 4-1/8" bore 124" long block TC engine. All black

Supplier SKU: 964723
Sale price£7,748.32

Availability: Out of stock
Estimated supplier restock: 9 November 2026 Supplier estimate, subject to change. Delivery time is additional once stock arrives.

The details that matter

Details

Description

All black powder coated finish, matching the factory finish . High Compression engine. Engine comes with 10.8:1 CR flat top forged pistons and 640GE easy-start cams. If you prefer all out high RPM horsepower numbers, this high compression engine is the one. Engine is sold as 'Long Block', meaning these are engines without any intake components or ignition. Any high performance intake system, that will fit a stock engine, will fit the S&S 124" since S&S specially machined the heads to compensate for cylinder length. Stock compatible air cleaners and breathers will also fit.
Note: Sold as 'Long Block' engine. Carburetor / throttle housing, manifold, ignition and charging system is not included.
Note: A large throttle housing and high performance ECU is required for best performance. Carbureted engines will require a ignition system with adjustable advance curves and large carburetor, as the S&S Super G or similar.
Note: 06-17 Dyna requires 558666 (black) oil line installation kit.
Note: Charging system requires an early style (MCS 591077) sprocket shaft spacer of 1.750" OD x 1.255" ID x 1.095" thick.

Note: Special Order Product only. To order please contact your MCS sales representative.

Specifications

Unit kit

Fitment

06-17 Dyna (NU)

Part numbers

Supplier SKU 964723
Manufacturer part 310-0900A

Specifications

BrandS&S Cycle
CategoryEngines

Fitment

Part numbers

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